/*
* This file is part of QDevelop, an open-source cross-platform IDE
* Copyright (C) 2006 - 2010 Jean-Luc Biord
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*
* Contact e-mail: Jean-Luc Biord <jlbiord@gmail.com>
* Program URL   : http://biord-software.org/qdevelop/
*
*/
#include "editor.h"
#include "build.h"
#include <QProcess>
#include <QDebug>
#include <QFileInfo>
#include <QString>
#include <QDir>
#include <QLocale>
#include <QTextCodec>
#define QD qDebug() << __FILE__ << __LINE__ << ":"
//
Build::Build(QObject * parent, QString qmakeName, QString makeName, QString makeOptions, QString absoluteProjectName,
             bool qmake, bool n, bool g, QString compileFile, QString forceMode)

        : QThread(parent)
{
    connect(parent, SIGNAL(stopBuild()), this, SLOT(slotStopBuild()) );
    m_isStopped = false;
    m_qmakeName = qmakeName;
    m_qmake = qmake;
    m_makeName = makeName;
    m_makeOptions = makeOptions;
    m_projectDirectory = QFileInfo(absoluteProjectName).absolutePath();
    m_projectName = QFileInfo(absoluteProjectName).fileName();
    m_clean = n;
    m_build = g;
    m_compileFile = compileFile;
    m_errors = 0;
    m_warnings = 0;
    m_forceMode = forceMode;
}
Build::~Build() {
    m_buildProcess->deleteLater();
}

//
void Build::slotIncErrors()
{
    m_errors++;
}
//
void Build::slotIncWarnings()
{
    m_warnings++;
}
//
void Build::run()
{
    QStringList list;
    m_buildProcess = new QProcess();
#ifdef Q_OS_WIN32
    QString makePath = QFileInfo(m_makeName).absoluteDir().absolutePath();
    QString qmakePath = QFileInfo(m_qmakeName).absoluteDir().absolutePath();
    QStringList env = QProcess::systemEnvironment();
    env.replaceInStrings(QRegExp("^PATH=(.*)", Qt::CaseInsensitive), "PATH=\\1;"+makePath+";"+qmakePath);
    m_buildProcess->setEnvironment(env);
#endif
    connect(m_buildProcess, SIGNAL(readyReadStandardOutput()), this, SLOT(slotBuildMessages()) );
    connect(m_buildProcess, SIGNAL(readyReadStandardError()), this, SLOT(slotBuildMessages()) );
    m_buildProcess->setWorkingDirectory( m_projectDirectory );
    if ( m_qmake || !m_forceMode.isEmpty() )
    {
        emit message( QString(tr("Update project"))+" (qmake "+m_projectName+")..." );
        QStringList forceDebugList;
        if (!m_forceMode.isEmpty())
        {
            forceDebugList << "-after" << "CONFIG+="+m_forceMode;
        }
#ifdef Q_WS_MAC
        m_buildProcess->start(m_qmakeName, QStringList() <<"-spec"<< "macx-g++" << m_projectName << forceDebugList);
#else
        m_buildProcess->start(m_qmakeName, QStringList() << m_projectName << forceDebugList);
#endif
        if (!m_buildProcess->waitForFinished(800000))
        {
            return;
        }
        emit message( QString(m_buildProcess->readAll()) );
    }
    if ( m_clean )
    {

        emit message( QString("\n"+tr("Clean Project")+" (make clean)...\n") );
        m_buildProcess->start(m_makeName, QStringList("clean"));
        if (!m_buildProcess->waitForFinished(800000))
        {
            return;
        }
        emit message( QString(m_buildProcess->readAll()) );
    }
    if ( m_build )
    {
        QString compilation = buildOnly(m_compileFile);
        if ( !compilation.isEmpty() )
        {
            m_buildProcess->start( compilation );
            emit message( tr("\nCompilation of %1...\n").arg(m_compileFile) );
        }
        else
        {
            emit message( QString("\n"+tr("Build")+" (make)...\n") );
            m_buildProcess->start(m_makeName, QStringList() << m_makeOptions.split(" ", QString::SkipEmptyParts));
        }
        if (!m_buildProcess->waitForFinished(800000))
        {
            return;
        }
    }
    emit message( QString(m_buildProcess->readAll()), m_projectDirectory);
}
//
void Build::slotBuildMessages()
{
#ifdef Q_OS_WIN32
    // Divius: workaround for Windows: console use IBM 866 but system locale is CP1251
    static QTextCodec *codec = QTextCodec::codecForName("IBM 866");
    if (QLocale::system().language() == QLocale::Russian && codec)
    {
        emit message( codec->toUnicode(m_buildProcess->readAllStandardOutput()), m_projectDirectory );
        emit message( codec->toUnicode(m_buildProcess->readAllStandardError()), m_projectDirectory );
    }
    else
    {
        emit message( QString::fromLocal8Bit(m_buildProcess->readAllStandardOutput()), m_projectDirectory );
        emit message( QString::fromLocal8Bit(m_buildProcess->readAllStandardError()), m_projectDirectory );
    }
#else
    emit message( QString::fromLocal8Bit(m_buildProcess->readAllStandardOutput()), m_projectDirectory );
    emit message( QString::fromLocal8Bit(m_buildProcess->readAllStandardError()), m_projectDirectory );
#endif
}
//
void Build::slotStopBuild()
{
    m_isStopped = true;
    emit message( QString("\n---------------------- "+tr("Build stopped")+"  ----------------------\n") );
    m_buildProcess->kill();
}
//
QString Build::buildOnly( QString sourceFile )
{
    if ( sourceFile.isEmpty() )
        return QString();
    bool automaticCompilation = false;
    if ( sourceFile.endsWith("-qdeveloptmp.cpp") )
    {
        sourceFile = sourceFile.section("-qdeveloptmp.cpp",0 ,0)+".cpp";
        automaticCompilation = true;
    }
    QString objectFile = sourceFile.mid(0, sourceFile.lastIndexOf("."))+".o";
#ifndef WIN32
    //QString name = QDir( m_projectDirectory ).relativeFilePath( sourceFile );
    //return m_makeName+" "+ name.mid(0, name.lastIndexOf("."))+".o";
#endif
    QString shortObjectFile = objectFile;
    if ( !objectFile.section("/", -1, -1).isEmpty() )
        shortObjectFile = shortObjectFile.section("/", -1, -1).section(".", 0, 0)+".o";
    QString directives;
    QFile makefile(m_projectDirectory+"/"+"Makefile");
    if (!makefile.open(QIODevice::ReadOnly | QIODevice::Text))
        return QString();
    QString target, makefileFile, CXX, DEFINES, CXXFLAGS, INCPATH;
    while (!makefile.atEnd())
    {
        QString line = QString( makefile.readLine() );
        // This block is for Windows where the Makefile include Makefile.Debug or Makefile.Release.
        // Not used under Linux
        if ( line.section(" ", 0, 0).simplified() == "first:" && (line.section(" ", 1, 1).simplified()=="debug" || line.section(" ", 1, 1).simplified()=="release"))
            target = line.section(" ", 1, 1).simplified();
        if ( line.section("=", 0, 0).simplified() == "MAKEFILE" )
            makefileFile = line.section("=", 1, 1).simplified();
        if ( !target.isEmpty() && line.section(":", 0, 0) == target )
        {
            makefileFile = line.section(" ", 1, 1).simplified().replace("$(MAKEFILE)", makefileFile);
            makefile.close();
            makefile.setFileName( m_projectDirectory+"/"+makefileFile );
            if (!makefile.open(QIODevice::ReadOnly | QIODevice::Text))
                return QString();
            target = QString();
            continue;
        }
        // Common block for Windows and Linux
        if ( line.section("=", 0, 0).simplified() == "CXX" )
            CXX = line.section("=", 1, 1).simplified();
        if ( line.section("=", 0, 0).simplified() == "DEFINES" )
            DEFINES = line.section("=", 1, 1).simplified();
        if ( line.section("=", 0, 0).simplified() == "CXXFLAGS" )
            CXXFLAGS = line.section("=", 1, 1).simplified().replace("$(DEFINES)", DEFINES);
        if ( line.section("=", 0, 0).simplified() == "INCPATH" )
            INCPATH = line.section("=", 1, 1).simplified();
        if ( line.section("-o ", 1, 1).section(" ", 0, 0).replace("\\", "/").simplified().right(shortObjectFile.length()) == shortObjectFile )
        {
            line = line.simplified();
            line = line.replace("$(CXX)", CXX);
            line = line.replace("$(CXXFLAGS)", CXXFLAGS);
            line = line.replace("$(INCPATH)", INCPATH);
            directives = line;
            break;
        }

    }
    if ( automaticCompilation )
    {
        QString s = sourceFile.section(".cpp", 0, 0).section("/", -1);
        directives.replace(s+".o", s+"-qdeveloptmp.o");
        directives.replace(s+".cpp", s+"-qdeveloptmp.cpp");
    }
    return directives;
}
//
